Mineral Structure Data
The titanite group is composed of the minerals titanite (sphene) (CaTiSiO5) and malayaite (CaSnSiO5)
The crystal structure of titanite.
End-Member Titanite Malayaite Formula CaTiSiO5 CaSnSiO5 Form.Wt. 196.063 266.853 Z 4 4 CrystalSystem Mono Mono PointGroup 2/m 2/m SpaceGroup P21/a A2/a UnitCell a(Å) 7.069 7.149 b(Å) 8.722 8.906 c(Å) 6.566 6.667 beta 113.86 113.3 Vol(Å3) 370.23 389.86 MolarVol 55.748 58.704 Density 3.517 4.546 Thermal Expansion(Volumetric) alpha a0 a1 a2 Elastic Properties Ks(GPa) G(Gpa)
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